China Standard: GB/T 5224–2003 Steel Strand for Prestressed Concrete

This standard specifies the classification, dimension, contour and quality of steel strand used for prestressed concrete as well as its permissible deviation, technical requirements, test methods, inspection rules, packaging, lebelling and quality certification, etc.

This standard is applicable to steel strand used for prestressed concrete which twisted by cold drawing round steel wires and Indented steel wires (steel strand for short)